Oil separator and compressed air drying system
a technology of oil separator and compressed air, which is applied in the direction of suspension, heating type, separation process, etc., can solve problems such as system operation defects, and achieve the effect of reducing the number of times the separated liquid is recovered
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first embodiment
[0024]An oil separator according to a first embodiment will now be described with reference to FIG. 1.
[0025]As shown in FIG. 1, a vehicle such as a truck, a bus, or a construction machine uses compressed air delivered from a compressor 1 to control systems such as brakes and suspensions. Thus, an air dryer 2, which removes oil and water from compressed air and delivers dried air, is provided downstream of the compressor 1 in an air system. The air dryer 2 incorporates a desiccant. The air dryer 2 executes a loading mode operation for removing water and oil from compressed air by allowing the compressed air to pass through the desiccant and an unloading mode operation for regenerating the desiccant by ejecting water and oil trapped by the desiccant to the outside. The air dryer 2 delivers, to a system tank 4, dry compressed air that has been dried through the loading mode operation. The system tank 4 supplies the compressed air to systems such as brakes and suspensions. When the pres...
second embodiment
[0041]An oil separator according to a second embodiment will now be described with reference to FIG. 2. The oil separator of the present embodiment is different from the first embodiment in that the counter is replaced by a flow rate sensor. Differences from the first embodiment will mainly be discussed below.
[0042]As shown in FIG. 2, a flow rate sensor 22, which is a measurement sensor, is arranged at the ejection port 2b of the air dryer 2. In the present embodiment, the flow rate sensor 22 functions as a determination device. The flow rate sensor 22 measures the amount of the collected liquid in the liquid storage portion 3c by measuring the amount (ejected amount) of purge air passing through the ejection port 2b based on the flow rate of the purge air at the ejection port 2b. The flow rate sensor 22 causes the control valve 30a to open when the measured ejected amount of the purge air increases and reaches a predetermined amount. Since an approximate value of the amount of oil ...
third embodiment
[0048]An oil separator according to a third embodiment will now be described with reference to FIG. 3. The oil separator of the present embodiment is different from the first embodiment in that the amount of collected liquid itself stored in the liquid storage portion 3c of the oil separator is used as the delivery condition. Differences from the first embodiment will mainly be discussed below.
[0049]As shown in FIG. 3, the liquid storage portion 3c of the oil separator 3 has a double structure including an outer container 31 and an inner container 32. The inner container 32 is arranged inside the outer container 31. Collected liquid is stored in the inner container 32. The inner container 32 is supported by the outer container 31 with a spring 33. On the inner bottom of the outer container 31, a weight sensor 34, which is a measurement sensor, is installed. In the present embodiment, the weight sensor 34 functions as a determination device. The weight sensor34 measures the amount of...
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